/* p12_add.c */

/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL

 * project 1999.

 */

/* ====================================================================

 * Copyright (c) 1999 The OpenSSL Project.  All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 *

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer. 

 *

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in

 *    the documentation and/or other materials provided with the

 *    distribution.

 *

 * 3. All advertising materials mentioning features or use of this

 *    software must display the following acknowledgment:

 *    "This product includes software developed by the OpenSSL Project

 *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"

 *

 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to

 *    endorse or promote products derived from this software without

 *    prior written permission. For written permission, please contact

 *    licensing@OpenSSL.org.

 *

 * 5. Products derived from this software may not be called "OpenSSL"

 *    nor may "OpenSSL" appear in their names without prior written

 *    permission of the OpenSSL Project.

 *

 * 6. Redistributions of any form whatsoever must retain the following

 *    acknowledgment:

 *    "This product includes software developed by the OpenSSL Project

 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"

 *

 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY

 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR

 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT

 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,

 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED

 * OF THE POSSIBILITY OF SUCH DAMAGE.

 * ====================================================================

 *

 * This product includes cryptographic software written by Eric Young

 * (eay@cryptsoft.com).  This product includes software written by Tim

 * Hudson (tjh@cryptsoft.com).

 *

 */

#include <stdio.h>

#include "cryptlib.h"

#include <openssl/pkcs12.h>

/* Pack an object into an OCTET STRING and turn into a safebag */

EXPORT_C PKCS12_SAFEBAG *PKCS12_item_pack_safebag(void *obj, const ASN1_ITEM *it, int nid1,

	     int nid2)

{

	PKCS12_BAGS *bag;

	PKCS12_SAFEBAG *safebag;

	if (!(bag = PKCS12_BAGS_new())) {

		PKCS12err(PKCS12_F_PKCS12_ITEM_PACK_SAFEBAG, ERR_R_MALLOC_FAILURE);

		return NULL;

	}

	bag->type = OBJ_nid2obj(nid1);

	if (!ASN1_item_pack(obj, it, &bag->value.octet)) {

		PKCS12err(PKCS12_F_PKCS12_ITEM_PACK_SAFEBAG, ERR_R_MALLOC_FAILURE);

		return NULL;

	}

	if (!(safebag = PKCS12_SAFEBAG_new())) {

		PKCS12err(PKCS12_F_PKCS12_ITEM_PACK_SAFEBAG, ERR_R_MALLOC_FAILURE);

		return NULL;

	}

	safebag->value.bag = bag;

	safebag->type = OBJ_nid2obj(nid2);

	return safebag;

}

/* Turn PKCS8 object into a keybag */

EXPORT_C PKCS12_SAFEBAG *PKCS12_MAKE_KEYBAG(PKCS8_PRIV_KEY_INFO *p8)

{

	PKCS12_SAFEBAG *bag;

	if (!(bag = PKCS12_SAFEBAG_new())) {

		PKCS12err(PKCS12_F_PKCS12_MAKE_KEYBAG,ERR_R_MALLOC_FAILURE);

		return NULL;

	}

	bag->type = OBJ_nid2obj(NID_keyBag);

	bag->value.keybag = p8;

	return bag;

}

/* Turn PKCS8 object into a shrouded keybag */

EXPORT_C PKCS12_SAFEBAG *PKCS12_MAKE_SHKEYBAG(int pbe_nid, const char *pass,

	     int passlen, unsigned char *salt, int saltlen, int iter,

	     PKCS8_PRIV_KEY_INFO *p8)

{

	PKCS12_SAFEBAG *bag;

	/* Set up the safe bag */

	if (!(bag = PKCS12_SAFEBAG_new())) {

		PKCS12err(PKCS12_F_PKCS12_MAKE_SHKEYBAG, ERR_R_MALLOC_FAILURE);

		return NULL;

	}

	bag->type = OBJ_nid2obj(NID_pkcs8ShroudedKeyBag);

	if (!(bag->value.shkeybag = 

	  PKCS8_encrypt(pbe_nid, NULL, pass, passlen, salt, saltlen, iter,

									 p8))) {

		PKCS12err(PKCS12_F_PKCS12_MAKE_SHKEYBAG, ERR_R_MALLOC_FAILURE);

		return NULL;

	}

	return bag;

}

/* Turn a stack of SAFEBAGS into a PKCS#7 data Contentinfo */

EXPORT_C PKCS7 *PKCS12_pack_p7data(STACK_OF(PKCS12_SAFEBAG) *sk)

{

	PKCS7 *p7;

	if (!(p7 = PKCS7_new())) {

		PKCS12err(PKCS12_F_PKCS12_PACK_P7DATA, ERR_R_MALLOC_FAILURE);

		return NULL;

	}

	p7->type = OBJ_nid2obj(NID_pkcs7_data);

	if (!(p7->d.data = M_ASN1_OCTET_STRING_new())) {

		PKCS12err(PKCS12_F_PKCS12_PACK_P7DATA, ERR_R_MALLOC_FAILURE);

		return NULL;

	}

	if (!ASN1_item_pack(sk, ASN1_ITEM_rptr(PKCS12_SAFEBAGS), &p7->d.data)) {

		PKCS12err(PKCS12_F_PKCS12_PACK_P7DATA, PKCS12_R_CANT_PACK_STRUCTURE);

		return NULL;

	}

	return p7;

}

/* Unpack SAFEBAGS from PKCS#7 data ContentInfo */

EXPORT_C STACK_OF(PKCS12_SAFEBAG) *PKCS12_unpack_p7data(PKCS7 *p7)

{

	if(!PKCS7_type_is_data(p7))

		{

		PKCS12err(PKCS12_F_PKCS12_UNPACK_P7DATA,PKCS12_R_CONTENT_TYPE_NOT_DATA);

		return NULL;

		}

	return ASN1_item_unpack(p7->d.data, ASN1_ITEM_rptr(PKCS12_SAFEBAGS));

}

/* Turn a stack of SAFEBAGS into a PKCS#7 encrypted data ContentInfo */

EXPORT_C PKCS7 *PKCS12_pack_p7encdata(int pbe_nid, const char *pass, int passlen,

			      unsigned char *salt, int saltlen, int iter,

			      STACK_OF(PKCS12_SAFEBAG) *bags)

{

	PKCS7 *p7;

	X509_ALGOR *pbe;

	if (!(p7 = PKCS7_new())) {

		PKCS12err(PKCS12_F_PKCS12_PACK_P7ENCDATA, ERR_R_MALLOC_FAILURE);

		return NULL;

	}

	if(!PKCS7_set_type(p7, NID_pkcs7_encrypted)) {

		PKCS12err(PKCS12_F_PKCS12_PACK_P7ENCDATA,

				PKCS12_R_ERROR_SETTING_ENCRYPTED_DATA_TYPE);

		return NULL;

	}

	if (!(pbe = PKCS5_pbe_set(pbe_nid, iter, salt, saltlen))) {

		PKCS12err(PKCS12_F_PKCS12_PACK_P7ENCDATA, ERR_R_MALLOC_FAILURE);

		return NULL;

	}

	X509_ALGOR_free(p7->d.encrypted->enc_data->algorithm);

	p7->d.encrypted->enc_data->algorithm = pbe;

	M_ASN1_OCTET_STRING_free(p7->d.encrypted->enc_data->enc_data);

	if (!(p7->d.encrypted->enc_data->enc_data =

	PKCS12_item_i2d_encrypt(pbe, ASN1_ITEM_rptr(PKCS12_SAFEBAGS), pass, passlen,

				 bags, 1))) {

		PKCS12err(PKCS12_F_PKCS12_PACK_P7ENCDATA, PKCS12_R_ENCRYPT_ERROR);

		return NULL;

	}

	return p7;

}

EXPORT_C STACK_OF(PKCS12_SAFEBAG) *PKCS12_unpack_p7encdata(PKCS7 *p7, const char *pass, int passlen)

{

	if(!PKCS7_type_is_encrypted(p7)) return NULL;

	return PKCS12_item_decrypt_d2i(p7->d.encrypted->enc_data->algorithm,

			           ASN1_ITEM_rptr(PKCS12_SAFEBAGS),

				   pass, passlen,

			           p7->d.encrypted->enc_data->enc_data, 1);

}

EXPORT_C PKCS8_PRIV_KEY_INFO *PKCS12_decrypt_skey(PKCS12_SAFEBAG *bag, const char *pass,

								int passlen)

{

	return PKCS8_decrypt(bag->value.shkeybag, pass, passlen);

}

EXPORT_C int PKCS12_pack_authsafes(PKCS12 *p12, STACK_OF(PKCS7) *safes) 

{

	if(ASN1_item_pack(safes, ASN1_ITEM_rptr(PKCS12_AUTHSAFES),

		&p12->authsafes->d.data)) 

			return 1;

	return 0;

}

EXPORT_C STACK_OF(PKCS7) *PKCS12_unpack_authsafes(PKCS12 *p12)

{

	if (!PKCS7_type_is_data(p12->authsafes))

		{

		PKCS12err(PKCS12_F_PKCS12_UNPACK_AUTHSAFES,PKCS12_R_CONTENT_TYPE_NOT_DATA);

		return NULL;

		}

	return ASN1_item_unpack(p12->authsafes->d.data, ASN1_ITEM_rptr(PKCS12_AUTHSAFES));

}